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[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91最新文献

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Field investigation of a photovoltaic power system for a telecommunications system 某电信系统光伏发电系统的现场调研
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172375
Y. Kawagoe, K. Nakamura, D. Ikeda, S. Torigoe
{"title":"Field investigation of a photovoltaic power system for a telecommunications system","authors":"Y. Kawagoe, K. Nakamura, D. Ikeda, S. Torigoe","doi":"10.1109/INTLEC.1991.172375","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172375","url":null,"abstract":"Nippon Telegraph and Telephone Corporation (NTT) introduced a photovoltaic power system (26 kWp) into a microwave radio station in Hokkaido, Japan, which was monitored and evaluated from September 1989 to August 1990. The authors describe the outline and results of this investigation. The photovoltaic power system supplied on average 92% of its output from sunshine throughout the year of study, satisfying the design forecast.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121226279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Reduction of power loss in voltage resonant converter 降低电压谐振变换器的功率损耗
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172388
T. Kitajima, Y. Shinada, T. Kobayashi
{"title":"Reduction of power loss in voltage resonant converter","authors":"T. Kitajima, Y. Shinada, T. Kobayashi","doi":"10.1109/INTLEC.1991.172388","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172388","url":null,"abstract":"A forward type voltage resonant converter with a MOSFET synchronous rectifier was investigated to reduce the forward voltage drop of rectifier diodes. A novel current snubber circuit is proposed for the MOSFET synchronous rectifier to reduce reverse recovery losses of the MOSFET's body diode. A multioutput voltage resonant converter was investigated. A secondary current mode controller is proposed for the auxiliary output to perform precise regulation while the main output is regulated by controlling the switching frequency. Experimental results are included.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116845119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High efficiency telecom rectifier using a novel soft-switched boost-based input current shaper 采用新型软开关升压型输入电流整形器的高效电信整流器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172474
R. Streit, D. Tollik
{"title":"High efficiency telecom rectifier using a novel soft-switched boost-based input current shaper","authors":"R. Streit, D. Tollik","doi":"10.1109/INTLEC.1991.172474","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172474","url":null,"abstract":"A novel snubber circuit for the constant frequency pulsewidth-modulation (PWM) boost converter is presented to provide soft-switching transitions for the power switches and thus to reduce the power losses, component stresses, and noise generation. The proposed topology is very useful for the input current shapers in AC-AC applications. The operation of the circuit including its control block is explained and illustrated for a 1.5 kW, 100 kHz high-performance power-factor-corrected telecommunication rectifier.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115551824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 169
A 2 MHz resonant DC/DC converter module for telecommunication application 一种用于电信应用的2mhz谐振DC/DC转换器模块
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172442
I. H. Lee, S.H. Oh, H.J. Kim, T. Ahn
{"title":"A 2 MHz resonant DC/DC converter module for telecommunication application","authors":"I. H. Lee, S.H. Oh, H.J. Kim, T. Ahn","doi":"10.1109/INTLEC.1991.172442","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172442","url":null,"abstract":"The authors describe a novel DC/DC forward zero voltage switching (ZVS) multiresonant converter (MRC) with the following features: (1) Maximum switching frequency above 2 MHz; (2) converter efficiency of about 80% at full load; and (3) a control circuit using the UC3860IC, which is generally used for zero current switching, but which is used here for ZVS. A 48 V(DC) input, 5 V(DC) output, 50 W power module suitable for telecommunications applications was developed.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"82 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126023787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Noise analysis of DC-to-DC converter with random-switching control 带随机开关控制的dc - dc变换器噪声分析
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172411
T. Tanaka, Hiroshi Kameda, Tamotsu Ninomiya
{"title":"Noise analysis of DC-to-DC converter with random-switching control","authors":"T. Tanaka, Hiroshi Kameda, Tamotsu Ninomiya","doi":"10.1109/INTLEC.1991.172411","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172411","url":null,"abstract":"The effectiveness of random-switching control, by which the switching-noise spectrum is spread and its level is reduced, is briefly described through experimental results. The noise spectrum by random switching is analyzed in a general approach including a noise-generation model and a switching function with a random process. Taking the normal distribution as an instance, the amount of random perturbation is quantitatively analyzed. The validity of the analysis was confirmed experimentally by a series of pulses serving as an ideal switching-noise.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124145917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
Batteries and environmental requirements 电池和环境要求
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172398
H. Kiehne
{"title":"Batteries and environmental requirements","authors":"H. Kiehne","doi":"10.1109/INTLEC.1991.172398","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172398","url":null,"abstract":"Presently all lead-acid batteries, nickel-cadmium batteries, mercury and silver cells can be recycled. The main substances used in batteries, recycling or disposal of used batteries, and general measures to solve the environmental problems are considered. No recycling exists for zinc-carbon and alkaline cells, but pilot plants are under construction. In March 1991, the European Community adopted a directive on batteries and accumulators containing certain dangerous substances. The directive is described.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122503663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
The operation of a aluminium-air reserve power systems 运行一种铝-空气备用动力系统
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172422
S. Warner
{"title":"The operation of a aluminium-air reserve power systems","authors":"S. Warner","doi":"10.1109/INTLEC.1991.172422","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172422","url":null,"abstract":"Alupower-Chloride have developed a practical aluminium-air reserve battery which will provide over 150 Wh/dm/sup 3/ and 250 Wh/kg on discharge. The author describes both the principles and practicalities of operation of the reserve battery and techniques for incorporating them into power systems. The battery is intended to be used in conjunction with conventional, rechargeable, standby batteries and DC/DC power conversion equipment to provide cost-effective short- and long-term regulated power backup to key electrical installations. Two designs of the product are available capable of meeting electrical load requirements from 200 W to 2 kW for periods up to 72 h.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122277359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Efficient high-frequency soft-switched power converter with signal processor control 采用信号处理器控制的高效高频软开关功率转换器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172460
K. Vangen, T. Melaa, S. Bergsmark, R. Nilsen
{"title":"Efficient high-frequency soft-switched power converter with signal processor control","authors":"K. Vangen, T. Melaa, S. Bergsmark, R. Nilsen","doi":"10.1109/INTLEC.1991.172460","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172460","url":null,"abstract":"DC/AC high-power, high-density converter structures and topologies are evaluated. The direct DC-low frequency-AC structure with the dual active bridge (DAB) topology is selected together with insulated gate bipolar transistor (IGBT) switches at 100 kHz, 20 kVA. A novel control strategy for the DAB and series-loaded resonant converters is introduced. It gives the possibility of fixed-frequency, zero voltage switching in the entire converter output V-I-plane. Design equations are presented. A method for comparing topologies by mapping stress levels in the output V-I plane is demonstrated. Experimental results from a small-scale model are shown, with good correspondence to simulation waveforms. The converter will be driven by an IBM PC/MS Windows based control system, of which the core is a 32-b digital signal processor connected to a programmable gate array holding all switch control circuitry.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123376086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 73
Regulation of Cuk converters using fuzzy controllers 用模糊控制器控制Cuk变流器
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172407
F. Ueno, T. Inoue, I. Oota, M. Sasaki
{"title":"Regulation of Cuk converters using fuzzy controllers","authors":"F. Ueno, T. Inoue, I. Oota, M. Sasaki","doi":"10.1109/INTLEC.1991.172407","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172407","url":null,"abstract":"Synthesis of a control system using a fuzzy inference is proposed for switching regulators. A computer simulation result is given, as an example, where an output voltage of a Cuk converter is regulated by using the proposed fuzzy inference. The simulated waveforms of the output voltage at start-up and the responses to disturbances (variations of the load resistance and of the input voltage) are studied, as compared with those of a conventional proportional integral derivative (PID) control. The variation of the output voltage is smaller and the output voltage settles faster than that using the PID control.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115088878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 36
Control of voltage resonance type power supplies by an auxiliary switch 用辅助开关控制电压谐振型电源
[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91 Pub Date : 1991-11-05 DOI: 10.1109/INTLEC.1991.172386
T. Onodera
{"title":"Control of voltage resonance type power supplies by an auxiliary switch","authors":"T. Onodera","doi":"10.1109/INTLEC.1991.172386","DOIUrl":"https://doi.org/10.1109/INTLEC.1991.172386","url":null,"abstract":"In variable-period output control of a voltage resonance-type converter, the minimum output power is obtained in the subclass-E mode and the maximum output power is obtained at such a duty ratio that the off-time is half the resonance period. In an example, the ration of the maximum output power to the minimum output power was 16:1. When the period was fixed, the ratio of the maximum output power to the minimum output power was only 1.36:1. If the switching time was shortened by a longer interval than the damper period, the zero-voltage resonance condition could not be satisfied and the control range was narrowed. To overcome this problem, an auxiliary switch was provided in the resonance loop. As a result, the zero-voltage switch condition was expanded to a range such as that obtained in the case of a variable period. In the minimum output condition, the subclass-E mode was obtained for an on-time shorter than that in variable-period control, and the control range was expanded to 133:1 in terms of the maximum-to-minimum output power ratio.<<ETX>>","PeriodicalId":238105,"journal":{"name":"[Proceedings] Thirteenth International Telecommunications Energy Conference - INTELEC 91","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130035196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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